Precipitation variability drives the reduction of total soil respiration and heterotrophic respiration in response to nitrogen addition in a temperate forest plantation
文献类型：期刊论文
| 作者 | Song, Huanhuan2; Yan, Tao2,3; Wang, Jinsong1; Sun, Zhenzhong3 |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2019-11-22 |
| 页码 | 7 |
| 关键词 | Heterotrophic respiration Autotrophic respiration N fertilization Rainfall Drought Seasonally response |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-019-01417-z |
| 通讯作者 | Yan, Tao(yant@lzu.edu.cn) |
| 英文摘要 | How precipitation mediates the responses of soil respiration (Rs) and its components, i.e., heterotrophic respiration (Rh) and autotrophic respiration (Ra), to N addition remains uncertain. In an 11-year-old temperate larch plantation in northern China, we investigated the responses of Rs, Rh, and Ra to three N-addition rates (i.e., control: no N addition; low N addition: 20 kg N ha(-1) year(-1); and high N addition: 50 kg N ha(-1) year(-1)) over a 6-year period that experienced high variability in precipitation. In the control plot, Rs and Rh during wet years were significantly higher than values in both normal (by 37% and 62%, respectively) and dry years (by 19% and 39%, respectively). These results indicated that increased precipitation may stimulate soil microbial biomass and activity which in turn increase Rh and thus Rs. Interestingly, Rs was not affected by N addition in normal or dry years, whereas it was negatively affected by N addition in wet years, primarily due to the decrease in Rh during the summer following N addition. Furthermore, N addition significantly increased Ra in the spring of wet years, because the N limitation was largely alleviated after N addition, and thus, roots might be more active due to higher soil water and N availability. Overall, our findings emphasize the importance of incorporating the mediating role of increased precipitation on soil C loss via respiratory processes and corresponding responses to N addition into models, with the goal of reducing uncertainty in the predictions of carbon-climate feedbacks. |
| WOS关键词 | CLIMATE-CHANGE ; CARBON ; WATER ; CO2 ; ECOSYSTEMS ; PULSES ; IMPACTS ; METAANALYSIS ; COMMUNITIES ; DEPOSITION |
| 资助项目 | National Natural Science Foundation of China[41801056] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000498011300001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130285]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Lanzhou Univ, Engn Res Ctr Grassland Ind,Coll Pastoral Agr Sci, Key Lab Grassland Livestock Ind Innovat,Minist Ed, State Key Lab Grassland & Agroecosyst,Minist Agr, Lanzhou 730000, Gansu, Peoples R China 3.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Huanhuan,Yan, Tao,Wang, Jinsong,et al. Precipitation variability drives the reduction of total soil respiration and heterotrophic respiration in response to nitrogen addition in a temperate forest plantation[J]. BIOLOGY AND FERTILITY OF SOILS,2019:7. |
| APA | Song, Huanhuan,Yan, Tao,Wang, Jinsong,&Sun, Zhenzhong.(2019).Precipitation variability drives the reduction of total soil respiration and heterotrophic respiration in response to nitrogen addition in a temperate forest plantation.BIOLOGY AND FERTILITY OF SOILS,7. |
| MLA | Song, Huanhuan,et al."Precipitation variability drives the reduction of total soil respiration and heterotrophic respiration in response to nitrogen addition in a temperate forest plantation".BIOLOGY AND FERTILITY OF SOILS (2019):7. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。